Pure fluid system

ABSTRACT

A pure fluid system in which a control stream is capable of causing a mainstream of continuous flow of a pressurized fluid to deflect; the control stream is thereby so coordinated to the mainstream that no direct contact exists between the control stream and the mainstream but instead the control stream is formed as individual stream separated from the mainstream and flowing past the side of the mainstream to merely produce a change in pressure on the lateral side of the mainstream, thereby causing the mainstream to carry out a deflection.

United States Patent Inventors Mititaka Yamamoto Kyoto-fu;

saiqnixqsh dw qms Uekusa, Osaka-la; Tomoomi Kobayasi,

Kyoto-Eu, all of, Japan Appl. No. 768,133 Filed Oct. 16, 1968 PatentedJune 29, 1971 Assignee Tateisi Electronics Kyoto-fu, Japan Oct. 20, 1967Japan 42/67587 Priority PURE FLUID SYSTEM 6 Claims, 18 Drawing Figs.

US. Cl

Int. Cl

Field of Search References Cited UNITED STATES PATENTS 9/1965 Zilberfarb1/1966 Notwood 3.232505 2/1966 Groeber 137/815 3,258,023 6/1966 137/8153,283,766 11/1966 137/815 3,286,086 1 1/1966 235/201 PF 3,417,77012/1968 137/815 3,425,432 2/1969 137/815 3,457,937 7/1969 137/8153,388,898 6/1968 137/815 X 3,457,935 7/1969 137/815 3,467,122 9/1969137/815 3,468,326 9/1969 137/815 3,495,609 2/1970 137/815 PrimaryExaminer-Samuel Scott Attorney-Craig and Antonelli ABSTRACT: A purefluid system in which a control stream is capable of causing amainstream of continuous flow of a pressurized fluid to deflect; thecontrol stream is thereby so coordinated to the mainstream that nodirect contact exists between the control stream and the mainstream butinstead the control stream is formed as individual stream separated fromthe mainstream and flowing past the side of the mainstream to merelyproduce a change in pressure on the lateral side of the mainstream,thereby causing the mainstream to carry out a deflection.

PATENTEDJUNZQIHYI SHEET 1 OF 3 T W m m m max m o w K/ m mwv m "Ran .2fiM/M- AT" )RNHYS PATENTEUJUNZSIBH 3,5 9,3 1

sum 2 UF 3 INVENTORS h/r/rmm Jw/m/voru kw/ ow Paswon 009k 0: BY721170000 kaawras/ ATTORNEY:

PURE FLUID SYSTEM The present invention relates to a pure fluid systemin which a control stream controls the deflections of the mainstream ofcontinuous flow of pressurized fluid to perform analogue and digitalfunctions corresponding to those in the electronic devices and, moreparticularly relates to a fluid system in which the control stream isnot to come directly in contact with the mainstream, but is formed as aseparated individual stream flowing past the side of the mainstream toproduce a change in pressure on the lateral side of the mainstream,thereby causing the mainstream to make a deflection.

The pure fluid elements which have been proposed heretofore aregenerally based on such concept that the control stream issued from thecontrol nozzle is to impinge perpen dicularly against a continuousmainstream of pressure fluid which issues from the main jet nozzle, andthat by the interact ing flow of these two streams, the mainstream ofpressure fluid is made to deflect by a certain angular amount. However,in those conventional systems the control stream is caused to directlycome into contact with the mainstream from the con trol nozzle and sothe mainstream is spread away, or a turbulence of the stream may result,thus sometimes spoiling the stability of the stream. Moreover, unlessthe stream which forms the control fluid against the mainstream isregulated and restricted to a constant value with respect to the shape,velocity, direction, in addition to such other factors as density,viscosity, compressibility, uniformity, etc., of the stream, there mightresult enlarged errors or unexpected failures in the course ofdeflection of the mainstream. Further, a noteworthy defect of theconventional pure fluid elements lies in the fact that, as the controlis intermixed with the mainstream and dis solved away, the controlstream cannot be recovered for being put into fresh use again.

Broadly, therefore, it is an object of this invention to provide a purefluid system which is so constructed that the control stream, which iscapable of causing the mainstream of the continuous flow of pressurizedfluid to deflect, may be related to the mainstream, but is not allowedto contact the mainstream to produce an interacting flow as it issuesitself out of the control nozzle in the direction perpendicular to themainstream like the conventional elements; and instead of such impingingmode as described above, the control stream is formed as a separatedindividual stream flowing past the side of the mainstream withoutmutually colliding with the mainstream, nor making any peripheralcontact whatever, but simply aiming at causing a change in pressure toarise on the lateral side of the mainstream alone, to effectuate thedeflection of the mainstream.

According to this system, the mainstream of continuous flow sustainsonly a change in pressure as caused by the control stream, and so theflow of the mainstream is never disturbed, but is enabled to makedeflections accurately and precisely; also the various factors such asproperty, configuration, or disposition of the control stream can bedetermined by unrestricted selection, because the control stream nevercomes into contact with the mainstream. Furthermore, after effecting thedeflection of the mainstream satisfactorily, the control stream itselfcan be taken out or removed, and a repeated use for the removed controlstream is possible in the next stages; and besides, by setting upvarious specific combination of the mainstream and of the controlstream, analogue and digital functions similar to those in theelectronic devices can be attained like in the conventional elements. Ashas been described, the system of this invention is to form a separatedindividual flow of the control stream on one of the lateral sides of themainstream of the continuous flow, and by means of flow of the controlstream itself in what is called Air Curtain Action, one of the lateralsides of the mainstream is perfectly isolated from the outside; andsimultaneously, by a dint of the two flows of the main and controlstreams in what is called Rolling-in Action," the fluid which stays inthe isolated area, is dragged to the outside so that one of the lateralsides of the mainstream is rendered lower in pressure than the otherlateral side which opens to the atmosphere. The change and consequentdifference in pressure on the two lateral sides of the mainstream causesthe flow of the mainstream to divert to the low-pressure side in what iscalled Lower Pressure Side Diverting Action; and after the Air-CurtainAction" of the control stream has been eliminated, the deviation of themainstream is maintained itself, by virtue of the flow of the mainstreamin its passageway by what is called Wall-Sticking Effect. Therefore,being based on such mechanism as described above, one flow of themainstream can be deflected or diverted in any way desired by the otherflow of the control stream by means of ingeniously utilizing thefourfold characteristic natures which the flow of fluids, e.g., air andwater, generally have, which are Air-Curtain Action, Roll-in Action,Lower Pressure Side Diverting Action, and Wall-Sticking Effect."

In order to further clarify the functions of the system of thisinvention, firstly, as the control stream is enabled to control themainstream of continuous flow to effectuate the positive and perfectdeflection of the mainstream from a certain direction to anotherdefinite direction, such actions can be adapted for use in what iscalled logical actions in the electric devices; and secondly, as themainstream is enabled to divert in direct proportion to the magnitude ofthe control stream, such actions can be used as amplifier actions in theelectric devices; and thirdly, by a control which is formed of variouscombinations with a plurality of the control streams, the mainstream isenabled to operate compound actions such as OR/AND combinations in theelectric devices, and further, as various kinds of load devices, such asdiaphragm or postin, are provided in the passageway of the mainstream,the deflection of the mainstream can be utilized for memory actions inthe electric devices. All of the above advantage of utilization verifythat the flow of pressurized fluid having no moving parts can performvarious useful operations similar to those performed by what is calledthe electronic system.

Another object of this invention is to provide a pure fluid system inwhich the control stream flowing continuously or discontinuously, whichis formed on the lateral side of the mainstream of continuous flow,freely manipulates the deflection of the mainstream, and further, byoptionally adjusting factors of the control stream, such as themagnitude of flow, i.e., discharge, or velocity, the deflection of themainstream is directly proportional to the magnitude of the controlstream; in other words, by the controlling actions of the controlstream, the output of the mainstream is enabled to perform theproportional amplified action.

Still another object of this invention is to provide a pure fluid systemin which, so far as the control stream which is individually constitutedseparate from the mainstream of continuous flow is related to themainstream simply for producing a change in pressure on the lateral sideof the mainstream, optional modifications can be made for the controlstream with respect to the shape or form of the passageway, thedifferential gradient as against the flow of the mainstream, or thepositional relation with the mainstream, in order to have the variegatedstructure of the two streams.

It is also an object of this invention to provide a pure fluid system bymeans of which it is made possible to change the duration of time, froma moment to sizeable length, during which the mainstream completesdeviation or deflection by a dint of the controlling action of thecontrol stream, which is executed by effecting various modifications ofthe distance and capacity of the continuative space between themainstream and the control stream which is related to the mainstreamsimply for causing a change in pressure to be produced on the lateralside of the mainstream.

It is a further object of this invention to provide a pure fluid systemin which one opening is provided on one of the lateral sides of themainstream of continuous flow, which opening is open to the atmosphere,and which also directly faces the control stream on the other lateralside, simply for causing a change in pressure there, and whereby theopening permits stabilization of the flow of the mainstream; and furtherby cmploying a combination of the opening and of the control stream, alogical function generally known as a monostable action in the electriccircuit can be performed.

It is a still further object of this invention to provide a pure fluidsystem by means of which, in addition to one control stream which isrelated to the mainstream only for producing a change in pressure on onelateral side of the mainstream, another control stream is formed at thesame time on the other lateral side to impinge perpendicularly againstthe mainstream for causing the mainstream to divert toward the one side,thereby establishing such a function that one mainstream is caused to bediverted by two control streams, for performing a compound action suchas the combination of OR and AND action in the electric circuit.

It is still another object of this invention to provide a pure fluidsystem in which a plurality of control streams are formed on therespective lateral sides of the mainstream in such a way that each oneof the plural control streams is to be related to the mainstream on eachof the lateral sides simply for causing a change in pressure there, andthe mainstream is enabled toward be deviated to any one direction inwhich any one of the plural control streams is operated; and byutilizing such functions of a plurality of control streams, a logicalfunction, such as flip-flop, in the electric circuit can be performed.

It is also still another object of this invention to provide a purefluid system in which a plurality of input means are formed to cause theflow of one control stream related to the mainstream so as to simplycause a change in pressure produced on the lateral side of themainstream, and even though one single input means is employed out ofthe plural means, or else, even if some of the input means from amongthe plural means are combined as a unit at the same time, either of theabove patterns of input means for the control stream formation isenabled to equally control one mainstream; and by utilizing suchfunctions of a plurality of the input means, a logical action such as ORor NOR action in the electric circuit can be performed.

It is still another object of this invention to provide a pure fluidsystem in which a plurality of input means are formed in parallel tocause the flow on one control stream related to the mainstream so as tosimply cause a change in pressure produced on the lateral side of themainstream, and when only one single input means from the plural meansis operated, this single means might by itself flow out, failing to forma control stream which is to control the mainstream, but instead, whenthe input of the control stream is caused to come in from all of theinput means, such mutual interaction of the integrated inputs maysuccessfully accomplish the formation of the control stream withoutlosing any part of the inputs to flow out; and by utilizing suchfunction of a plurality of the inputs means, a logical action such asAND or NAND action in the electric circuit can be performed.

It is also a still further object of this invention to provide a pureinput system in which a certain number of sets of a plurality of inputmeans are formed in parallel to cause the flow of one control streamrelated to the mainstream so as to cause simply a change in pressureproduced on the lateral side of the mainstream, and in the process ofthe formation of the control stream, firstly, with respect to onespecific set among the plural sets, either one single input, from eitherone of the input means among the specific set, or the combined inputsfrom a plural input means are capable of forming the control streamwhich is to control the mainstream; and secondly, with regard to anotherspecific set among the plural sets, when only one single input fromeither one of the input means among the specific set is coming in, thissingle input is not capable of forming the control stream, but insteadwhen the inputs are coming in from all the members of input means of thespecific set, such inputs all together are capable of forming thecontrol stream by a dint of their mutually interacting functions; and

with all of the above functions being utilized, the logical action suchas AND and OR action in the electric circuit can be performed.

It is also a still further object of this invention to provide a purefluid system in which one or more of the moving parts such as adiaphragm are provided in the continuative space, which spans therelation of the mainstream with the separately formed control stream,and by means of which moving parts the mainstream is renderedcontrollable directly or indirectly, thus establishing a structuresimilar in nature to the general fluid-operating devices.

The pure fluid system of this invention has accomplished various objectsas above described. However, it is to be understood that theconstruction, configuration of the system, along with the fluid, are notrestricted to any particular scope.

The above and still further objects, features and advantages of thepresent invention will become apparent upon consideration of thefollowing detailed descriptions referring to several of specificembodiments as are shown in the accompanying drawings, wherein:

FIG. I is a diagram showing the configuration of the fluid passagewaywhich performs flip-flop action.

FIG. 2 is a cross-sectional view taken along the section line II-IIofFIG. 1.

FIG. 3 is an enlarged detail view of portions of FIG. 1.

FIG. 4 is a part sectional view taken along the section line IV-IV ofFIG. 3.

FIG. 5 is a diagram showing the configuration of the fluid passagewaypertaining to some modification of FIG. 1.

FIG. 6 is a cross-sectional view of FIG. 5.

, FIG. 7 is a diagram showing the configuration of the fluid passagewaywhich performs proportional amplified action.

FIG. 8 is a cross-sectional view of FIG. 7.

FIG. 9 is a diagram showing the configuration of the fluid passagewaywhich performs OR or NOR action.

FIG. 10 is a cross-sectional view of FIG. F.

FIG. I] is a diagram showing the configuration of a fluid passageway ofanother system which performs proportional amplified action.

FIG. 12 is a diagram showing the configuration of the fluid passagewaywhich performs AND or NAND action.

FIG. 13 is a diagram showing the configuration of the fluid passagewaypertaining to some modification of FIG. 12.

FIG. 14 is a diagram showing the configuration of the fluid passagewaywhich performs AND or OR action.

FIG. 15 is a diagram showing the configuration of the fluid passagewaypertaining to some modification of FIG. 9.

FIG. 16 is a diagram showing the configuration of the fluid passagewaypertaining to some modification of FIG. 9.

FIG. 17 is a diagram showing the configuration of the fluid passagewayof another system which performs AND and OR action.

FIG. 18 is an isometric view of FIG. 17. Referring now to the drawingwherein like reference numerals are used throughout the various views todesignate like parts, FIGS. 1 and 2 show a system set up according tothis invention, which performs what is called the flip-flop actionthrough such functional mechanism that the continuous flow of a mainjetstream F1 is caused to deflect to the right or left by control streamG1, G2 which are provided on both the right and left sides of the mainjetstream Fl, so that the main jetstream F1 may be switched over. Asystem body 1 consists of a plate 2 in which grooves are formed, throughwhich the fluid is to flow, and of plates 3 and 4 which are shaped up bylaminating and bonding the same to the two of the plate 2. The mainjetstream F1 comes in as an input through a pipe 5, and reaches an inputport 6 on the front, and continues proceed from a main jet nozzle 7 intoa control region 8; the main jetstream FI then further goes on throughan output passageway 9 or 10, of either the right or left side, and thenflows into an output port 11 or 12, and thus will be finally taken outas an output, from pipe 13 or 14. The two control streams G1, G2 whichflow selectively as streams separated from the main jetstream Flperpendicularly to the plate 2 and in a plane which is disposedtransversely, flow respectively as the inputs from a pipe or 16 into acontrol port 17 or 18; the two control streams G1, G2 then furtherproceed, passing by the extreme end of a continuative space 19 or 20which is respectively connected to the right or left of the controlregion 8, into an outlet port 21 or 22, and are taken out through a pipe23 or 24. The two output passageways 9 or 10 from the main jetstream F1are formed to provide what is called Wall-Sticking Effect so that themain jetstream F1 may flow while maintaining its state as having stuckto the wall in the neighborhood of thcjunction point P1, 01. On theother hand, there is opening 25 or 26 which is cxposed to atmosphere onthe outside of the output passageway 9 or 10, in order to stabilize theflow of the output fluid F1] or F12. Assuming here, as will be seen inFIG. 3, that the main jetstream F1 is now flowing from the controlregion 8 into the output passageway 9 on the left side only, bythe dintof the Wall-Sticking Effect" of the junction point P1, and at thatmoment if the control stream G2 is released to flow to pass by the endof the continuative space 20 which is connected to the right side of thecontrol region 8, then the control stream G2 neither directly impingesupon the main jetstream F1 nor makes any peripheral contact, but thecontrol stream G2 closes off the end of the continuative space 20, whichis an ac tion generally known as Air-Curtain Action," andsimultaneously, the control stream G2 drags out the residual fluidremaining inside the continuative space 20, which is an action generallyknown as Rolling-in Action. Accordingly, the pressure inside thecontinuative space 20, and in turn, the pressure on the right side ofthe control region 8, is lowered, thereby causing the main jetstream F 1to deviate from the left to the right side in what is called LowerPressure Side Diverting Action." By virtue of such an effect, eventhough the control stream may be diminished at a later time, by the dintof the Wall-Sticking Effect" of the junction point 01 it is possible tocause the main jetstream F1 toflow only through the output passageway 10on the right side. In just the same way as described above, the mainjetstream F1 which is now flowing only on the right side of through theoutput passageway 10 can be switched over to the output passageway 9 onthe. left side, by another control stream G1 which flows so as to passby the end of continuative space 19 on the left side. Therefore, byselectively causing the flow of the two control streams G1 and G2 asdescribed above, the output passageway of the main jetstream Fl can beswitched to either the left or the right, i.e., to 9 or 10. Further, ifthe control streams G1 and G2 are given a variable modification withrespect to the amount of discharge and of velocity, the degree ofdeflection of the main jetstream F1 also can be changed over a variablerange, in direct proportion to the amount of change in the factor of thecontrol streams G1 and G2. By utilizing such function as describedabove, the action generally known as proportional amplified action canbe performed; and furthermore, by changing the length of thecontinuative spaces 19 and 20 over a variable range, the time needed forthe main jetstream F 1 in completing its deviating action can be changedin various ways in direct proportion to the changing range of thecontinuative space. It is therefore understood that the operating timecan be freely adjusted.

Also, FIGS. 5 and 6 show a system, which performs the flip flop action,similar to that of FIG. 1. In the case of FIG. 1, the directions of flowof the control streams G1, G2 were made to be upward or downward, i.e.,perpendicularly, as against the front and rear streams of the mainjetstream Fl. Apart from the above, in the system of FIG. 5, the flowdirection of the control stream G3, G4 is in the longitudinal direction,i.e., in parallel with the front and rear streams of the main jetstreamF2. In other words, the stream of the main jetstream F2 in a system body27 is quite the same as that of FIG. 1, but the flows in FIG. 5 are madein such a way that the control streams G3, G4 come from a pipe 28 or 29respectively, as an input to the control ports 30 or 31, and further goon into the control passageway 32 or 33 which are formed in parallelwith the main jetstream nozzle 7; and then proceed, passing by the endof the continuative space 19 or 20 which are interconnected to the rightor left side of the control region 8, into an outlet port 34 or 35, thusfinally reaching a pipe 36 or 37, from where the stream is taken out. Inthis system the control function of the control streams of G3, G4 overthe main jetstream F2, is quite the same as that of FIG. 1.

Next, FIGS. 7 and 8 show a system by which the proportional amplifiedaction is performed in such functional mechanism that the main jetstreamF3 of a continuous flow is caused to deviate to left or right side inthe degree directly proportional to the amount of the control streams G5or G6, either of which causes the main jetstream F3 to run flow on boththe right and left sides. The construction of a system body 38 isapproximately the same as the system body 1 of FIG. 1. To pinpoint thedifference with FIG. 1, the system body 38 of FIG. 7 provides twofoldcontinuative spaces 40 and 41 of large size as a unity on both of theright and left sides of a control region 39 respectively, through whichthe main jetstream F3 runs; and these spaces 40 and 41 may not inducethe "Wall-Sticking Effect at the apex of the triangular intersectionwhere the twofold output passageways 42, 43 bifurcated from the controlregion 39 cross each other. In other words the apex is the interface ofwhat is called Splitter C1, which corresponds to the junction point P1,O1, in FIG. 1. In addition to the above, the main jet flow F3 flows inthe longitudinal direction and the control streams G5, G6 which flowperpendicularly relative to the main jet flow F3, flow on respectivelyas an input from a pipe 44 or 45 into a control port 46 or 47, andfurther pass through the continuative space 40 and 41 on both the rightand left side toward an outlet port 48 or 49, finally to be taken outfrom a pipe 50 or 51 which is provided on a straight line in alignmentwith pipe 44 or 45, respectively. The main jetstream F3 goes on throughthe control region 39, coming to hit at the Splitter C1," and as aresult, the main jetstream F3 is equally divided into two outputpassageways 42 and 43, thereby maintaining no pressure differencebetween right and left sides. Assuming here that the control stream G5on one side is made to go through the continuative space 40 of thecontrol region 39, the control stream G5 neither directly impinges uponthe main jetstream F3 nor makes any peripheral contact, but the controlstream G5 shuts out or closes off the intersection area between thecontrol region 39 and the continuation space 40; which is generallyknown as the Air-Cunain Action, and simultaneously, the control streamG5 drags out the residual fluid remaining therein, which is known as theRoll-in Action." Accordingly, the pressure between the control region 39and the continuative space 40 is lowered; and consequently, the mainjetstream F3 is caused to deviate from right to left at a rate directlyproportional to the amount of the control stream G5. In just the sameway as described above, the main jetstream F3 is caused to deviate fromleft to right at a rate directly proportional to the amount of the othercontrol stream G6 which is positioned so as to flow through thecontinuative space 41 on the right side. It is therefore understood thatif the two control streams G5, G6 flow simultaneously, the main jet flowF3 is caused to deflect to the left or to the right, thereby providingthe amplitied action, up to a degree and at a rate directly proportionalto the pressure difference between two control streams G5 and G6. Also,as shown in FIG. 7, those control streams G5, G6 can be passedlongitudinally through the continuative space 40 or 41 in parallel withthe main jetstream F3. It is further possible to provide anotherdifferent output passageway, not shown in the drawings, in a positionaligned in a straight line with the main jet nozzle 7, between the twooutput passageways 42 and 43, thereby obtaining a vicarious out putstream absence of the control streams G5, G6.

Further, FIGS. 9 and 10 show a system in which a plurality of inputports for forming a flow of one control stream G7 are provided, and inwhich when the control stream G7 has entered from any one of the aboveplural input ports, the main jetstream F4 of a continuous stream iscaused to deviate from one side to the other side, so that the mainjetstream F4 may be switched over, as OR or NOR action. The portioninside the system body 52, through which the main jetstream F4 flows, issubstantially the same in construction as the system body 1 of FIG. 1.To pinpoint the difference with FIG. 1, in the system body 52 of FIGS. 9and 10, opening 56 which is exposed to the atmosphere on one side, and aflow of the control stream G7 on the other side, formed by a pluralityof input ports 57a, 57b, and 570, are operatively connected on the rightand left of the control region 53, by way of continuative space 54 and55. The connection of the plural input ports 57a, 57 b, and 57c may bedone either in parallel or in series, provided that the respective inputstreams do not offset each other, but flow into one continuouspassageway 58, pass by the end of the continuative space 54, and furtherproceed into one outlet port 59, to be finally taken out through a pipe60. Also, the main jetstream F4 flows from the control region 53 to theoutput passageway 61 on the side of opening 56, and is enabled tomaintain its own flow by the dint of the Wall- Sticking Effect of thejunction point Q2. And, no matter which one of the input streams G7a,G7!) and (17c from whichever input ports of the plurality of inputparts, e.g., 57a, 57b, and 57c, may flow into the continuous passageway58 as the control stream G7, there will be produced in the continuativespace 54 an effect similar to the case of FIG. I, and in turn, the mainjet stream F4 may be deviated toward the output passageway 62 on theside of the continuous passageway 58, and further, when such a flow ofthe control stream G7 is intercepted or interrupted, the main jetstreamF4 may be allowed to automatically return to the output passageway 61 onthe side of the initial opening 56, without meanwhile encoun tering theWall-Sticking Effect" of the junction point P2. Therefore, no matterwhich input stream from whichever one input port among a plurality ofinput ports 57a, 57b and 570 for forming a flow of the control stream G7may enter or come in, or even if a plurality of input streams may comein concurrently at the same time, the main jetstream F4 will be causedto deviate from the side of the opening 56 toward the side of thecontinuous passageway 58.

Further, FIG. 11 shows a system which performs proportional amplifieraction similar to the system of FIG. 7. A system body 63 isapproximately the same as the system body 38 of FIG. 7. To point out thedifference with FIG. 7, in the case of FIG. 11, two control streams G8,G9 are to be formed by the input stream comprising a plurality of inputports respectively, e.g., 64a, 64b, 640, etc., and 65a, 65b, 65c etc.The interconnection of the plural input ports, i.e., 64a, 64b, 64c,etc., and 65a, 65b, 650, etc., may be done either in parallel or inseries, provided that the respective input streams may not offset eachother, but conversely, shall be summed up together, thereby flowing intoa continuous passageway 66, 67, and proceed on, passing by the end ofthe continuative space 68, 69, and through one outlet port 70, 71, shallbe taken out at a pipe 72, 73. And in addition to the above, themagnitude of the input stream of each and every input port, i.e., 64a,64b, 64c, and 65a, 65b, 650, shall be made uniform. By doing so, themain jetstream F5 may be deviated to the left or right, through theeffect of the action of two control streams G8, G9 in a manner similarto the system of FIG. 7; and the amount of the above deviation of themain jetstream F5 can be amplified to the extent directly proportionalto the pressure difference between the two control streams G8 and G9,which is synonymous with the difference of the number of the inputstreams flowing into the control streams G8, G9 from the respectiveinput ports 64a, 64b, 64c, etc., and 65a, 65b, 65c, etc.

Next FIG. 12 shows a system in which a plurality of input ports areprovided for forming a flow of the control stream G10, and in which onesingle input coming from any one input port among the plural ports isnot capable of causing the main jetstream F6 to deviate, but instead,only when a plurality of inputs come in from the plural input portssimultaneously, the main jetstream F6 is deviated from one side over tothe other side so that the main jetstream F6 may be caused to producethe switching action generally known as AND and NAND actions. A systembody 74 is approximately the same as the system body 52 in FIG. 9. Topoint out the difference with FIG. 9, in the system of FIG. 12, theinterconnection ofa plurality of input ports, 75a, 75b, etc., forforming a flow of the control stream G10 is made so as to cross eachother, in parallel; and at the respective opposite positions, theopenings 76a, 76b, etc., exposed to the atmosphere are provided; andfurther one continuative passageway 78 is provided, through which thecontrol stream G10 flows from the intersection point 77. Similar to thatof FIG. 9, the main jetstream F6 may be deviated from the side of theopening 79 toward the continuative passageway 78 side by the dint of thecontrol stream G10. In this instance, the control stream G10 is notcapable of being formed when only one single input comes in from amongthe plural input ports 75a, 7511, etc., and it flows out through theopening 76a, 76!), etc. which is disposed directly opposite, but doesnot flow into continuative passageway 78. But instead, if the pluralinput streams from the plural input ports 75a, 75b, etc. flown in andare directed to impinge at the intersection 77, all of them interact andflow into the continuative passageway 78, thus successfully attainingthe formation of the control stream G10. Accordingly,.when the pluralinputs have come in or entered simultaneously from the plural inputports 75a, 75b, etc., the main jetstream F6 may be deviated toward oneside, in direct proportion to to the magnitude of the control stream G10which is formed by those input streams.

Also FIG. 13 shows a system which performs AND and NAND action, likewiseas the one of FIG. 12, and a plurality of the control streams G11 arecombined, to perform plural stages of AND and NAND actions. A systembody 79 is approximately the same as the system body 74 of FIG. 12.However, as compared with FIG. 12, in the system of FIG. 13 a plu ralityof pairs of input ports 80 and input port 81, which each ports 81 isexposed to the atmosphere and confronts a respective port or ports 80,are organized into an upper grade combination of sets of pairs, thesesets being mutually crossed, and such upper grade combination isprovided in the plurality of stages. The sets of pairs of openings areinterconnected in stepped order, one after another, by means of theprimary continuative passageway 83 which is provided at the intersectionof combinations 82; on one occasion the primary continuative passageway83 is made as one input port and is combined into a pair with theopening exposed to the atmosphere, and this pair is interwoven with theabove combination, by way of a branchlike connection; and further, atthe intersection 84 of the last stage, a secondary continuativepassageway 85 is provided, through which the control stream G11 flows.The control stream G11 can be formed only when a plurality of particularinput ports 80 of several stages are combined with the input stream andflow in such port, and thus the con trol stream G11 can cause adeviation of the main jetstream F7 to one definite side to be performed.

FIG. 14 shows a system in which the control stream G7 of FIG. 9 and thecontrol stream G11 of FIG. 13 are put into a pair, and such pairs areorganized into a set of pairs, so as to operate AND and NAND actions ofplural stages. A system body 86 is integrally set up in a continuativepassageway 87 of one control stream G12 which passes by the continuativespace 54 at the last stage. A plurality of input ports 89 are ramifiedinto a plurality of pairs in the continuative passageway 90. And withrespect to one pair of input ports 89a, 89b, 89c, etc., just as in thecase with FIG. 9, no matter from whichever input ports of the pair 89a,89b, 890, etc., the input stream may cone in, this input stream is madeto flow in one single secondary continuative passageway 90a. Andbesides, another pair of input ports, 89A, 89B, 89C, etc., just as inFIG. 13, connect the combinations in which the pairs of input ports 89and the opening 91 are mutually crossed, in a steplike order one afteranother, by the primary continuative passageway 92 and those passageways92 are integrally set up in one single continuative passageway 90A, andwhen the plural input streams come in simultaneously from particularinput port 89A,'or 898, or 89C, the input stream may be made to flow inthe secondary continuative passageway 90A. And then, the control streamG12 is a combination of input ports 89a, 8%, 09, etc., which perform ORaction, just as was the case with FIG. 9, and the input ports 89A, 89B,89C, etc., which operate AND action as in FIG. 15, and sothe controlstream G12 forms one flow of a stream which controls the main jetstreamF8.

Also FIG. shows a system which operates an OR or NOR action, similarlyto that of FIG. 9. In the system of FIG. 9, the flow direction of thecontrol stream G7 was defined longitudinally, in parallel with thelongitudinal direction of the flow of the main jetstream F4, whereas inthe system of FIG. 15, the flow direction of the control stream G13 isdefined as vertical, transversely to the longitudinal direction of theflow of the main jetstream F9. The pluralinput ports 93a, 93b, 93c,etc., which are provided on a system body 52A are integrally set up inone continuative passageway 94, and this continuative passageway 94passes, coming from up and down direction, over to the end of thecontinuative space, not shown in the drawings. Thus, the control streamis enabled, just as the case with FIG. 7, to cause the main jetstream F9to deviate toward the side of the continuative passageway 94.

Next FIG. 16, shows a system in which the control stream G14 flowing ina system body 528 is, just as in the case of FIG. 9, so constituted asto operate an OR or NOR action, and at the same time, a diaphragm 96 isprovided inside a continuative space 95, and besides, in a controlregion 98, which is set up inside the main jetstream F10 which flowsthrough the pipe 97, there is provided an all fluid system,super-low-pressure valve 99, of which the input port 100 receiving pilotpressure is connected to the continuative space 95, and through suchconfiguration of the valve 99, the main jetstream F10 flowing from thepipe 97 is to be controlled. Therefore, assuming here that the inputstream now comes out from a plurality of input ports 101a, 101b, 101e,etc., and also that the control stream G14 flows through thecontinuative passageway 102, and passing by the end of the continuativespace 95, finally flows into output port 103, then the control stream G141 performs its function just as in the case of FIG. 9, andconsequently the pressure inside the continuative space 95 is lowered,thereby causing the diaphragm 96 to deflect against the pilot pressureof the valve 99 which is going to reach a certain activating point, andthen the valve 99 is actuated to work and intercepts the flow of themain jetstream F10.

Further FIGS. 17 and 18 show a system which is so constituted that wheneither one of the plural control streams G15, G16 impinges upon the flowof the main jetstream Fll, from one side of it, the main jetstream F11may be deviated toward the other side of it, and only when the separatecontrol streams G17, G18, simultaneously flow on the other side of themain jetstream F11, the pressure of that lateral side of the mainjetstream F11 may be lowered to create a condition in which the mainjetstream F11 may be deviated toward that side, so that a compoundaction of OR and AND action can be performed. The flow of the mainjetstream F11 in a system body 104 is based on a principle similar tothe main jetstream 1 of FIG. 1. However, in the system of FIGS. 17 and18 the control streams come out in four streams. The two control streamsG15, G16 on the right side of the main jetstream F11 come out of therespective control ports, 105, 106 through one single control nozzle107, go on to impinge against the main jetstream F11 and thus causes themain jetstream F11 to deviate toward the output passageway 109 from theoutput passageway 108 on the right side. Accordingly, the main jetstreamF1ll can be controlled by a flow of either one of the two controlstreams G15, G16 so as to be operated as OR action. With respect to theother two control streams G17, G18 on the left side of the mainjetstream F11, they come out of the respective control ports 110 and 111and go to the continuative passageways 112, 113 which are positionednearer to each other and are open by way of the upper end of theinterior of the continuative space provided on the left side of thecontrol region. And, besides, the undersides of the continuativepassageway 112, 113 are connected to the output ports 116, 117 which areexposed to the atmosphere and are provided aligned, respectively.

Accordingly, when only one control stream G17, or G18, flows, the port116 or 117 which is not subjected to a flow by the other control stream,is exposed to the atmosphere, so that neither the control stream G17 norG18 lowers the pressure inside the continuative space 115. However, whenboth of control streams G17 and G 18 flow simultaneously, the controlstreams G17, G18 flow, passing from the continuative passageway 112, 113into both of the output ports 116, 117 respectively. Therefore, just aswith G1 in the case of FIG. 1 the control streams G17, G18 lower thepressure inside the continuative space 115, and thus cause the mainjetstream F11 to deviate from the output passageway 108 on the rightside toward the output passageway 109 on the left side so as to beoperated as AND action.

Having described and illustrated a number of embodiments of the purefluid system in accordance with the present invention, it is believedobvious that other modifications and variations of the details ofconstruction illustrated and disclosed in the specifications arepossible. It is therefore to be understood that changes may be made inthe particular embodiment of this invention described which are withinthe full intended scope of the invention as clarified by the appendedclaims:

What we claim is:

1. A pure fluid system comprising:

means for issuing a mainstream of continuous flow of a pressurizedfluid, means forming a control region into which said mainstreamproceeds to flow, outlet passage means so positioned as to receive saidmainstream from said control region, means for forming a flow of acontrol stream separated from said mainstream including control meanshaving a continuative space by way of which the lateral side of thecontrol stream and said region are interconnected, said control meansreceiving the flow of said control stream and in operative communicationwith said control region so as to avoid direct contact of said controlstream with said mainstream and to control the latter by the formerthrough the formation of an air curtain wherein said control streamcloses off the end of the continuative space in communication with saidcontrol region while simultaneously removing residual fluid within thecontinuative space so as to decrease the pressure and divert saidmainstream to the side of said control region corresponding to saidcontrol stream, characterized by a plurality of input means for formingthe flow of said control stream, said control means being provided witha number of opening means to receive said control stream in such amanner that the lateral side of the control stream formed by anintegrated flow from said plural input means is in operativecommunication with said control region in such a manner as to avoidcontact between said control stream and said mainstream.

2. A pure fluid system, comprising:

means for issuing a mainstream of continuous flow of a pressurizedfluid, means forming a control region into which said mainstreamproceeds to flow, outlet passage means so positioned as to receive saidmainstream from said control region, means for forming a flow of acontrol stream separated from said mainstream including control meanshaving a continuative space by way of which the lateral side of thecontrol stream and said region are interconnected, said control meansreceiving the flow of said control stream and in operative communicationwith said control region so as to avoid direct contact of said controlstream with said mainstream and to control the latter by the formerthrough the formation of an air curtain wherein said control streamcloses off the end of the continuative space in communication with saidcontrol region while simultaneously removing residual fluid within thecontinuative space so as to decrease the pressure and divert saidmainstream to the side of said control region corresponding to saidcontrol stream, characterized by a plurality of input means for formingthe flow of said control stream, said control means including a numberof opening means positioned to receive the flow formed by one of saidplural input means, and a number of opening means positioned to receivethe flow of said control stream formed by an integrated flow from all ofsaid plural input means, and the latter side of said control streambeing in operative communication with said control region in such amanner as to avoid direct contact between said control stream and saidmainstream.

3, A pure fluid system, comprising: means for issuing a mainstream ofcontinuous flow of a pressurized fluid, means forming a control regioninto which said mainstream proceeds to flow, a number of outlet passagemeans so positioned as to receive said mainstream from said controlregion, means for forming a flow of a control stream separated from saidmainstream including control means receiving the flow of said controlstream and in such operative communication with said control region asto avoid direct contact of said control stream with said mainstream tocontrol the latter by the former, characterized by a plurality of setsof input means for forming said control stream, said control meansincluding a number of opening means positioned to receive the flowformed by one of said input means of one given set, and a number ofopening means positioned to receive the flow formed by the combinationof an integrated flow from all of said plural input means of said onespecific set and an integrated flow from said plural input means ofanother specific set, and the lateral side of said control stream beingin operative communication with said control region in such a manner asto avoid direct contact between said control stream and said mainstream.

4. A pure fluid system, comprising:

means for issuing a mainstream of continuous flow ofa pressurized fluidmeans forming a control region into which said mainstream proceeds toflow, outlet passage means so positioned as to receive said mainstreamfrom said control region, means for forming a flow of a control streamseparated from said mainstream including control means having acontinuative space by way of which the lateral side of the controlstream and said control region are interconnected, said control meansreceiving the flow of said control stream and in operative communicationwith said control region so as to avoid direct contact of said controlstream with said mainstream and to control the latter by the formerthrough the formation of an air curtain wherein said control streamcloses off the end of the continuative space in communication with saidcontrol region while simultaneously removing residual fluid within thecontinuative space so as to decrease the pressure and divert saidmainstream to the side of said control region corresponding to saidcontrol stream, wherein a plurality of input ports are provided on eachside of said control region for forming the flow of said control streamfrom any one of said input ports, and continuous passage means areprovided for operatively, connecting each plurality of inlet ports andsaid continuative space on each side of said control region.

5. A pure fluid system, comprising:

means for issuing a mainstream of continuous flow ofa pressurized fluid,means forming a control region into which said mainstream proceeds toflow, outlet passage means so positioned as to receive said mainstreamfrom said control region, means for forming a flow of a control streamseparated from said mainstream including control means having acontinuative space by way of which the lateral side of the controlstream and said region are interconnected, said control means receivingthe flow of said control stream and in operative communication with saidcontrol re ion so as to avoid direct contact of said control stream witsaid mainstream and to control the latter by the former through theformation of an air curtain wherein said control stream closes off theend of the continuative space in communication with said control regionwhile simultaneously removing residual fluid within the continuativespace so as to decrease the pressure and divert said mainstream to theside of said control region corresponding to said control stream, inwhich opening means exposed to the atmosphere are provided positioned onthe side of said control region opposite to the side thereof facing thecontrol stream, characterized in that a plurality of input ports areprovided for forming the flow of said control stream of any one of saidinput ports, and continuous passage means are provided for operativelyconnecting said input ports and said continuative space. 6. A pure fluidsystem as defined in claim 5, wherein the direction of flow of saidcontrol stream is substantially perpendicular to the flow of saidmainstream.

1. A pure fluid system comprising: means for issuing a mainstream ofcontinuous flow of a pressurized fluid, means forming a control regioninto which said mainstream proceeds to flow, outlet passage means sopositioned as to receive said mainstream from said control region, meansfor forming a flow of a control stream separated from said mainstreamincluding control means having a continuative space by way of which thelateral side of the control stream and said region are interconnected,said control means receiving the flow of said control stream and inoperative communication with said control region so as to avoid directcontact of said control stream with said mainstream and to control thelatter by the former through the formation of an air curtain whereinsaid control stream closes off the end of the continuative space incommunication with said control region while simultaneously removingresidual fluid within the continuative space so as to decrease thepressure and divert said mainstream to the side of said Control regioncorresponding to said control stream, characterized by a plurality ofinput means for forming the flow of said control stream, said controlmeans being provided with a number of opening means to receive saidcontrol stream in such a manner that the lateral side of the controlstream formed by an integrated flow from said plural input means is inoperative communication with said control region in such a manner as toavoid contact between said control stream and said mainstream.
 2. A purefluid system, comprising: means for issuing a mainstream of continuousflow of a pressurized fluid, means forming a control region into whichsaid mainstream proceeds to flow, outlet passage means so positioned asto receive said mainstream from said control region, means for forming aflow of a control stream separated from said mainstream includingcontrol means having a continuative space by way of which the lateralside of the control stream and said region are interconnected, saidcontrol means receiving the flow of said control stream and in operativecommunication with said control region so as to avoid direct contact ofsaid control stream with said mainstream and to control the latter bythe former through the formation of an air curtain wherein said controlstream closes off the end of the continuative space in communicationwith said control region while simultaneously removing residual fluidwithin the continuative space so as to decrease the pressure and divertsaid mainstream to the side of said control region corresponding to saidcontrol stream, characterized by a plurality of input means for formingthe flow of said control stream, said control means including a numberof opening means positioned to receive the flow formed by one of saidplural input means, and a number of opening means positioned to receivethe flow of said control stream formed by an integrated flow from all ofsaid plural input means, and the latter side of said control streambeing in operative communication with said control region in such amanner as to avoid direct contact between said control stream and saidmainstream.
 3. A pure fluid system, comprising: means for issuing amainstream of continuous flow of a pressurized fluid, means forming acontrol region into which said mainstream proceeds to flow, a number ofoutlet passage means so positioned as to receive said mainstream fromsaid control region, means for forming a flow of a control streamseparated from said mainstream including control means receiving theflow of said control stream and in such operative communication withsaid control region as to avoid direct contact of said control streamwith said mainstream to control the latter by the former, characterizedby a plurality of sets of input means for forming said control stream,said control means including a number of opening means positioned toreceive the flow formed by one of said input means of one given set, anda number of opening means positioned to receive the flow formed by thecombination of an integrated flow from all of said plural input means ofsaid one specific set and an integrated flow from said plural inputmeans of another specific set, and the lateral side of said controlstream being in operative communication with said control region in sucha manner as to avoid direct contact between said control stream and saidmainstream.
 4. A pure fluid system, comprising: means for issuing amainstream of continuous flow of a pressurized fluid means forming acontrol region into which said mainstream proceeds to flow, outletpassage means so positioned as to receive said mainstream from saidcontrol region, means for forming a flow of a control stream separatedfrom said mainstream including control means having a continuative spaceby way of which the lateral side of the control stream and said controlregion are interconnected, said control means receiving the flow of saidcontrol stream and in operative communication with said control regioNso as to avoid direct contact of said control stream with saidmainstream and to control the latter by the former through the formationof an air curtain wherein said control stream closes off the end of thecontinuative space in communication with said control region whilesimultaneously removing residual fluid within the continuative space soas to decrease the pressure and divert said mainstream to the side ofsaid control region corresponding to said control stream, wherein aplurality of input ports are provided on each side of said controlregion for forming the flow of said control stream from any one of saidinput ports, and continuous passage means are provided for operativelyconnecting each plurality of inlet ports and said continuative space oneach side of said control region.
 5. A pure fluid system, comprising:means for issuing a mainstream of continuous flow of a pressurizedfluid, means forming a control region into which said mainstreamproceeds to flow, outlet passage means so positioned as to receive saidmainstream from said control region, means for forming a flow of acontrol stream separated from said mainstream including control meanshaving a continuative space by way of which the lateral side of thecontrol stream and said region are interconnected, said control meansreceiving the flow of said control stream and in operative communicationwith said control region so as to avoid direct contact of said controlstream with said mainstream and to control the latter by the formerthrough the formation of an air curtain wherein said control streamcloses off the end of the continuative space in communication with saidcontrol region while simultaneously removing residual fluid within thecontinuative space so as to decrease the pressure and divert saidmainstream to the side of said control region corresponding to saidcontrol stream, in which opening means exposed to the atmosphere areprovided positioned on the side of said control region opposite to theside thereof facing the control stream, characterized in that aplurality of input ports are provided for forming the flow of saidcontrol stream of any one of said input ports, and continuous passagemeans are provided for operatively connecting said input ports and saidcontinuative space.
 6. A pure fluid system as defined in claim 5,wherein the direction of flow of said control stream is substantiallyperpendicular to the flow of said mainstream.